Database migration

Dear user,
Thanks for your interest in our project! Unfortunately, this database is no longer functioning. However, the database „Turkology Annual Online“ is being migrated to a new home within the Specialised Information Service Middle East-, North Africa- and Islamic Studies (Fachinformationsdienst Nahost-, Nordafrika- und Islamstudien), hosted at the University and State Library Saxony-Anhalt and funded by the DFG. During the funding period 2022-2024 the database will be relaunched by our colleagues at Halle University. We apologize for any inconveniences this may cause.

If you are looking for the raw data of our project you might be interested in our data publication:
Matthias Arnold; Dustin Heckmann; Peter Gietz; Anette Frank; Michael Ursinus; Christian Roth; Arina Chitavong; Jens Hansche; Nicolas Bellm; Mateusz Dolata, 2021, "Turkology Annual Online – Full bibliographic records", DOI: 10.11588/data/GH511N
With the end of the project, maintenance of the database became difficult and had to be stopped eventually. Because of the personal engagement of Dustin Heckmann, one of the former project members, not only the data was secured, but also the parsing itself significantly improved. Data provided in the data set shows the last update from HCTS side (Dustin Heckmann).

The Turkology Annual

The Turkologischer Anzeiger/Turkology Annual (TA), founded by Andreas Tietze (†) and György Hazai, is an indispensable systematic bibliography for Turkology and Ottoman Studies. Experts from all over the world contribute to its compilation, which is funded by several institutions including the UNESCO. The volumes edited by the Department of Oriental Studies of the University of Vienna have until now only appeared in printed form.

Turkology Annual Online

Our project at Heidelberg University's Cluster of Excellence "Asia and Europe in a Global Context" has digitized the first 26 published TA volumes and for the first time provides an online "re-published" version of the resource with new and efficient search functionality. The entries of volume 27-28, which was published in 2010 after the start of our project, will be added as soon as possible.

The TA contains entries in a large number of different languages, including transcriptions of Arabic and languages using the Cyrillic alphabet. Even single entries may contain chunks in several different languages. We expected this to constitute a serious problem for digitization using the Optical Character Recognition (OCR) software available at the Cluster of Excellence: Even very good OCR results are still hardly acceptable for building a database, as entries that contain recognition mistakes cannot be reliably retrieved in search. However, it turned out that accordingly fine-tuned, OCR results were of such a high quality that the few remaining errors were mostly irrelevant for typical search queries. While this meant that the effort of developing automatic OCR correction software would not be justified for our project, we encountered problems of another kind: Syntax analysis of the TA entries proved to be much harder than anticipated, as entry types and data structures are often only implicitly marked, and some of them change from volume to volume. Additionally, syntax analysis (parsing) had to cope with structural errors in the entries - errors that human editors have made and that human readers would not even notice, but errors that can be serious problems for parsing. Our parsing software therefore needed to be tailored on the data in order to be comprehensive as well as robust.


The Team

  • Prof. Dr. Anette Frank: project director (Computational Linguistics)
  • Prof. Dr. Michael Ursinus: project director (Islamic Studies)
  • Matthias Arnold: coordination (image processing and user interface)
  • Peter Gietz: coordination (integration into Heidelberg Research Architecture)
  • Christian Roth: general coordination
  • Arina Chitavong: scanning
  • Jens Hansche: scanning
  • Nicolas Bellm: programming (database programming)
  • Mateusz Dolata: programming (syntax analysis)
  • Dustin Heckmann: programming (user interface)

Important note

We are not involved in the actual editing of the TA. For any questions, please contact the editors or the University of Vienna.